Windows Standard Mode: When did it first appear?

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QUESTION :

I have read conflicting tales of when Windows first ran in protected mode and ran one DOS application in real mode (this mixture is the so-called standard mode, I think). Some sources claim it was Windows 2.0, some claim it was Windows 2.1 (which introduced enhanced mode for the 386).

Can anyone confirm which tale is true?

ANSWER :

Wikipedia says it’s Windows 2.1

Windows 2.1 was released in two different versions: Windows/386 employed the 386 virtual 8086 mode to multitask several DOS programs, and the paged memory model to emulate expanded memory using available extended memory. Windows/286 (which, despite its name, would run on the 8086) still ran in real mode, but could make use of the high memory area.

I found this article now: http://www.os2museum.com/wp/?p=541

It shows a box and a start screen of a Windows/386 2.0, meaning that Windows 2.1 wasn’t the first Windows/386 but Windows 2.0 was – a specific version for Compaq. This makes it highly likely that Windows/286 already existed with Windows 2.0.

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